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Discussing English grammar, the term "double negative" is often, [9] though not universally, [10] [11] applied to the non-standard use of a second negative as an intensifier to a negation. Double negatives are usually associated with regional and ethnical dialects such as Southern American English , African American Vernacular English , and ...
In propositional logic, the double negation of a statement states that "it is not the case that the statement is not true". In classical logic, every statement is logically equivalent to its double negation, but this is not true in intuitionistic logic; this can be expressed by the formula A ≡ ~(~A) where the sign ≡ expresses logical equivalence and the sign ~ expresses negation.
But the term "double negative" can sometimes refer to the standard English constructions called litotes or nested negatives, e.g., using "He is not unhealthy" to mean "He is healthy". In some cases, nested negation is used to convey nuance, uncertainty, or the possibility of a third option other than a statement or its negation.
(the NPI anywhere is used in the environment of the preceding negative not) Note that double-negative constructions like I was not going nowhere take on an opposing meaning in formal usage, but that this is not necessarily the case in colloquial contexts and in various lects, which parallels other languages which have negative concord.
Negative numbers: Real numbers that are less than zero. Because zero itself has no sign, neither the positive numbers nor the negative numbers include zero. When zero is a possibility, the following terms are often used: Non-negative numbers: Real numbers that are greater than or equal to zero. Thus a non-negative number is either zero or positive.
The search for a new Chicago Bears coach is on in earnest with the conclusion of the NFL's regular season, and it reportedly includes a surprising new candidate.
Therefore, children typically cannot use explicit negative evidence to learn that an aspect of grammar, such as using double negatives in English, is ungrammatical. This example also shows that children can make incorrect generalizations about which grammatical principle a parent corrects, suggesting that there must be something other than ...
Seven soldiers will receive Medals of Honor decades after their acts of heroism. Some military experts say the delays may be because of their race.